must bluster
Regular verb: bluster - blustered- blustered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bluster
you must bluster
he must bluster
we must bluster
you must bluster
they must bluster 	I must be blustering
you must be blustering
he must be blustering
we must be blustering
you must be blustering
they must be blustering	I must have blustered
you must have blustered
he must have blustered
we must have blustered
you must have blustered
they must have blustered	I must have been blustering
you must have been blustering
he must have been blustering
we must have been blustering
you must have been blustering
they must have been blustering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't bluster
you mustn't bluster
he mustn't bluster
we mustn't bluster
you mustn't bluster
they mustn't bluster 	I mustn't be blustering
you mustn't be blustering
he mustn't be blustering
we mustn't be blustering
you mustn't be blustering
they mustn't be blustering	I mustn't have blustered
you mustn't have blustered
he mustn't have blustered
we mustn't have blustered
you mustn't have blustered
they mustn't have blustered	I mustn't have been blustering
you mustn't have been blustering
he mustn't have been blustering
we mustn't have been blustering
you mustn't have been blustering
they mustn't have been blustering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bluster?
must you bluster?
must he bluster?
must we bluster?
must you bluster?
must they bluster? 	must I be blustering?
must you be blustering?
must he be blustering?
must we be blustering?
must you be blustering?
must they be blustering? 	must I have blustered?
must you have blustered?
must he have blustered?
must we have blustered?
must you have blustered?
must they have blustered? 	must I have been blustering?
must you have been blustering?
must he have been blustering?
must we have been blustering?
must you have been blustering?
must they have been blustering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I bluster?
mustn't you bluster?
mustn't he bluster?
mustn't we bluster?
mustn't you bluster?
mustn't they bluster? 	mustn't I be blustering?
mustn't you be blustering?
mustn't he be blustering?
mustn't we be blustering?
mustn't you be blustering?
mustn't they be blustering? 	mustn't I have blustered?
mustn't you have blustered?
mustn't he have blustered?
mustn't we have blustered?
mustn't you have blustered?
mustn't they have blustered? 	mustn't I have been blustering?
mustn't you have been blustering?
mustn't he have been blustering?
mustn't we have been blustering?
mustn't you have been blustering?
mustn't they have been blustering?